Vice: Project Doom, known in Japan as Gun-Dec (ガンデック), is a multi-genre action video game developed by Aicom and published by Sammy for the Nintendo Entertainment System. The game was released in Japan on April 26, 1991 and in North America on November 15, 1991. Vice: Project Doom is a side-scrolling platformer similar to the Ninja Gaiden series for the NES, with the addition of gun shooting and driving segments as well. The player assumes the role of a secret agent who must uncover a conspiracy involving a new kind of alien substance.